astro/dist/core/routing/internal/route-errors.js

Astro is a modern site builder with web best practices, performance, and DX front-of-mind.

const ROUTE404_RE = /^\/404\/?$/;
const ROUTE500_RE = /^\/500\/?$/;
const ROUTE3XX_RE = /^\/3xx\/?$/;
export function isRoute404(route) {
	return ROUTE404_RE.test(route);
}
export function isRoute500(route) {
	return ROUTE500_RE.test(route);
}
/** Matches the route of the user-provided redirect page, `src/pages/3xx.astro`. */
export function isRoute3xx(route) {
	return ROUTE3XX_RE.test(route);
}